WT20X91.5 Steel WT-shape — Section Properties
Dimensions
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 19.5 | 495.3 mm |
| Flange Width (bf) | 11.8 | 29.97 cm |
| Flange Thickness (tf) | 1.2 | 30.5 mm |
| Web Thickness (tw) | 0.65 | 16.5 mm |
| Area (A) | 26.7 in² | 172.3 cm² |
| Weight | 91.5 lb/ft | 136.2 kg/m |
Elastic Section Properties
| Property | Strong Axis (X-X) | Weak Axis (Y-Y) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 955 | 165 | in⁴ |
| Elastic Section Modulus (S) | 65.7 | 28 | in³ |
| Plastic Section Modulus (Z) | 117 | 44 | in³ |
| Radius of Gyration (r) | 5.98 | 2.49 | in |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 9.65 | in⁴ |
| Warping Constant (Cw) | 71.2 | in⁶ |
Design Resources
- Section Properties Database — Compare with other sections
- Steel Beam Sizes Reference — Full dimension table
- Steel Grades Reference — Material properties
Frequently Asked Questions
What is the weight of a WT20X91.5 tee? 91.5 lb/ft (136.2 kg/m).
What is the section modulus of WT20X91.5? Sx = 65.7 in³, Zx = 117 in³ (strong axis). Sy = 28 in³, Zy = 44 in³ (weak axis).
What steel grade is standard for WT20X91.5? ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) for WT-shapes. Verify with mill certificate.
What is the moment of inertia of WT20X91.5? Ix = 955 in⁴ about the strong axis and Iy = 165 in⁴ about the weak axis. The radius of gyration is rx = 5.98 in and ry = 2.49 in.
Related Pages
Educational reference only. Verify all section properties against the current AISC Manual and mill certificates before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.